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Enter a value, an expression, or a term with a variable like 10^n+1 to list a range. Switch to Database id to look a number up by its stored id. Reading never stores anything; use Create to add a number to the database. See the expression syntax & functions reference.

P · Proven prime
id #1100000009012490407 1,739 digits created 2026-07-28

Value

29026220289770510931466073323326266612056674547452973615803420296764878437860941068174765417260328843495259159408760594856580271433165145390408376922635957467901641609534697442922042482927968104780061087861951823615426508358911203100156772573563831815988193427061757624073508089904246617414209300348561059465693077230894337616440926186803590901848251632712430095004855075160865173213191355065834191663888537304860761601599106084233539156316075025318608754634953057208454146016120723292460894867654301109946334538167432252815951217812825415869904928921119715395626635552639475102478026812479559930311466922970365734166997469807647639591655340579456671373447419786850876723447823439305859800527472541320842878293229137775328034931777184120974038383359456992530738738723754285211139545366121027585869098310638578551696920351435535324115107825631281910753578772704011999709954427670339540271964569676125347764899661460491046499813784881624638596316996012113235421163765286288923094057554766000758010304164154033207324237746451535849215694044493015712704146289447373401944951855190360663003137273310993653595835418604290357916921607588629449069021724992314587496137396627520545971619879786218607494465700816668696023472922098386675005091582364974429648828910640643645162554580767185432771991382267438882494813669456457508608294944764280278378846237076134348839614268539798479959972328073732371624478544935002566646104301510913644373450583997126534438291050562929480034087206637748914011971197104452757914446609124285485784980821685611315380183457916145464600510976543548747578693791716880908861059159475451263899146870179326011034544911246018514478427793238368809878746256702032958578812685633163972787899498762638662702707008398840088787538287
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 72 of the certificate chain of a 2,692-digit prime (195 intermediate primes).

Certified number2,692-digit prime
Certificatedownload
Certificate chainshow step 72 of 195

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009012490407 --detail 2 --decimal
curl
curl -s 'https://factordb.com:4059/rpc' -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"get_number","params":{"target":{"id":1100000009012490407},"decimal":true,"detail":2}}'